To the apparent bemusement of visitors from New Zealand and Australia, locals have been donning jerseys and hoodies over the last couple of days in an effort to beat the chill, with bike riders in particular rugging up to the max to combat the cold.
Tourists, meantime, have continued to enjoy swimming and sunning themselves at the beach, though the windy weather will have deterred some.
The reason for the cooler weather. anti-cyclone system travelling north from a chilly New Zealand, which continues to bring rain, wind, and cooler weather with it.
The Cook Islands Meteorological Service says the first signs of wintery weather in the Cook Islands arrived last week, with strong winds and cold weather hitting the southern group. On Sunday, the temperature dropped to a cool 18C and temperatures throughout July are expected to peak at only 25C
A ridge of high pressure lying to the south of the Cook Islands is currently breaking up and should collapse within the next few days. This means the southern group is expected to once again experience bouts of cool rain and high winds with an associated weak trough.
During the five-month “dry-season” period from May to October, the Cook Islands will receive only a predicted 800mm of rain - close to a third of its annual 2.4 metre rainfall. As always, the Met Service is advising all Cook Islands residents to be conservative with their water usage.
It’s estimated that temperatures will start rising again in the Cook Islands by no later than October.